Abstract: A developing apparatus is disclosed which is disposed opposite to an electrostatic latent image holding member and adapted for developing an electrostatic latent image formed on the electrostatic latent image holding member to a visible image with a single component toner, the apparatus comprising a first toner carrier having a peripheral surface and being adapted for holding the single component toner on the peripheral surface, a first regulating member which is in contact with the first toner carrier, a second toner carrier having a peripheral surface and being adapted for holding the single component toner and for relatively approaching to or coming in contact with the first toner carrier so as to transfer the single component toner to the first toner carrier, and a second regulating member which is in contact with the second toner carrier, wherein the first toner carrier or the second toner carrier is adapted to relatively and selectively approach to or come in contact with the electrostatic latent image

Abstract: A method for driving an image sensor, the image sensor including a pair of first and second main electrodes fabricated on a semiconductor layer in such a manner that the first and second main electrodes are separated with each other via a light receiving region. An insulating layer is stacked on the semiconductor layer and an auxiliary electrode then stacked on the insulating layer. The method includes the steps of applying a constant bias voltage to the auxiliary electrode over both a read time period and a non-read time period of a signal current of the image sensor.

Abstract: In an electric device having a package included an electric circuit element therein, a cooling fan is fixed on the package directly. The fan is formed of piezoelectric elements and a flexible cooling fin. The fan generates the cooling air flow due to vibration of the piezoelectric elements.

Abstract: A support is formed and comprises a base, a resin layer which is formed on the base and on recesses which are formed on a surface of the base, and a conductive layer which is formed on a portion of a surface of the resin layer, other than where the recesses are formed. The surface of the recesses is electrically charged by way of a corona discharge to create static electricity in the recesses. Metal balls to be formed into bump electrodes are held in the recesses by way of the static electricity. Then, each of the metal balls is bonded to a corresponding electrode terminal of an electronic component by hot press unit while the electronic component is opposed to the support.

Abstract: A position adjustment device employs a holder on which a semiconductor wafer is attached. When placed on a surface plate, the wafer holder is turned upside-down, so that unlocked leg rods and the pattern transfer surface of the wafer are in direct contact with a reference surface of the plate. Piezoelectric elements are embedded in the holder as locking mechanism for the movable leg rods. In response to a variable DC voltage supplied by a voltage generating circuit, the piezoelectric elements deform to lock the rods with high accuracy.

Abstract: In a displacement generating device, a voltage signal generator produces a triangular-wave drive voltage signal so as to drive a piezoelectric element in a desired vibration mode. The voltage signal generator is connected to the piezoelectric element through a differentiator and a constant current supply. The drive voltage signal is differentiated by the differentiator, and is then supplied as a rectangular-wave voltage signal to the constant current supply. Since constant currents having two levels are alternately supplied to the piezoelectric element, an amount of charge accumulated in the piezoelectric element can be controlled linearly during the current supply time. As a result, since displacement of the piezoelectric element is linearly controlled in proportion to the amount of charge, it coincides with the triangular waveform of the drive voltage signal. A vibration mode free from hysteresis can be obtained.

Abstract: According to an image pickup device, a swing-driver unit is provided for vibrating an image sensor unit, thereby causing the image sensor unit to perform an image pickup operation in such a manner as to periodically shift to different sampling positions at different time points in one frame period. The swing-driver comprises a pair of plate-like bimorph piezoelectric elements for stably supporting the image sensor unit. The image sensor unit and the piezoelectric elements are sealed in a ceramic frame body in a compact manner. The electrical connection between the image sensor unit and lead wires formed on the frame is performed by a flexible film connector. The electrical connection between the piezoelectric elements and the lead wires is performed by wiring patterns preformed on the frame.

Abstract: A displacement generation device includes: a bimorph piezoelectric vibrator for receiving an externally applied drive voltage and for generating a displacement in response to the drive voltage; and a temperature-compensation capacitor element electrically connected in series with the piezoelectric vibrator. The capacitor element has a capacitance with a temperature coefficient with the same absolute value but opposite sign to that of the capacitance of the piezoelectric vibrator. When the capacitance of the piezoelectric vibrator changes in accordance with a change in the ambient temperature, the capacitor element properly changes the drive voltage supplied to the piezoelectric vibrator, thereby compensating for the displacement of the piezoelectric vibrator caused by the change in ambient temperature.

Abstract: A solid state image-sensing device is disclosed which includes a base board fitted with a plurality of connection pins, an interline transfer charge coupled device (IT-CCD) serving as an area sensor, and a pair of bimorph piezoelectric vibrating elements which jointly vibrate to periodically vibrate the IT-CCD relative to an incoming image light in a plane substantially parallel with the surface of the base board, and wherein the piezoelectric vibrating elements are elastically held above the base board by support plates having a spring action, thereby efficiently vibrating the IT-CCD.

Abstract: A piezoelectric displacing device includes a plurality of longitudinal effect-type piezoelectric displacing members arranged juxtaposed to each other such that displacement axes thereof are substantially parallel to each other, each of said piezoelectric displacing member converting a voltage applied thereto to a mechanical displacement. Connectors are provided which mechanically connect the piezoelectric displacing members in series with each other and derive a sum of amounts of displacement of the piezoelectric displacing members along the displacement axes thereof to give an amount of displacement of the device.

Abstract: A gas combustion apparatus is disclosed wherein an oxygen sensor having electrodes on both surfaces of a base body is fixed in advance at a position such that the oxygen sensor is within the exhaust gas a combustion flame under normal conditions and a combustion flame under oxygen deficiency conditions is brought into contact with only the measuring side electrode. The oxygen sensor is preferably mounted to a heat-resistance holder having an opening such that the measuring side electrode corresponds with the opening.